TLP590B(CF) - 7V Photovoltaic Optocoupler, 2500Vrms | Toshiba
MPN: TLP590B(CF) ✓ Hoạt độngTLP590B(CF) Tóm tắt
A photovoltaic optocoupler (also called a photovoltaic isolator or PV-output optocoupler) is a type of optoisolator whose output is a series-connected photodiode stack generating a small voltage when illuminated. Unlike phototransistor or phototriac optocouplers that produce a current output, a PV-output device produces a usable voltage that can float the gate of a MOSFET or IGBT. Within the broader isolator taxonomy, the TLP590B sits in the solid-state relay / gate-drive optocoupler family, alongside photorelays, gate-drive optos, and magnetic isolators - it is the simplest, lowest-cost way to bias a high-side or floating MOSFET switch.
Key features include a minimum 7 V open-circuit output voltage (sufficient to turn on standard-threshold MOSFETs), 12 uA typical short-circuit current, 2500 Vrms isolation rating, and a wide operating temperature range suitable for industrial environments. The CF tape-and-reel packaging option supports high-volume automated assembly. The GaAlAs infrared emitter features a typical forward voltage of 1.25 V at 10 mA IF and a reverse breakdown of 5 V minimum, and the package is UL-recognized under file E67349 with creepage and clearance designed to meet 5 mm reinforced insulation.
The internal photo-diode array uses series-connected photovoltaic cells, which produce an open-circuit voltage proportional to the number of cells stacked. Six series cells typically yield 7 V open-circuit and roughly 12 uA short-circuit under 20 mA drive current. Compared to a discrete approach with an LED and discrete booster circuit, the TLP590B integrates the PV array inside a single isolator barrier, reducing PCB area, BOM count, and design complexity for floating-switch gate-drive functions.
Typical applications include solid-state relay output stages (replacing electromechanical relays in industrial automation), battery management systems (galvanic isolation for high-side N-MOSFET switches), programmable logic controller (PLC) output modules, telecommunications line drivers, and MOSFET/IGBT gate drivers for floating or high-side configurations. The photovoltaic output allows direct gate biasing without secondary supply, simplifying low-power switching.
When designing with this device, ensure that the LED forward current is limited to the datasheet-recommended IF range (typically 10 to 20 mA) with an external resistor; the output can be shorted when the input is off, so no external discharge network is required for turn-off. Designers should also derate isolation voltage according to application safety standards such as IEC 60747-5-5 or UL 1577.
This page synthesizes distributor pricing, package-level drop-in equivalents from the Toshiba photovoltaic-output family, and practical design guidance that consolidates the manufacturer's datasheet into an engineer-ready reference.
Bộ thay thế dễ dàng lắp đặt cho TLP590B(CF) — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với TLP590B(CF) (cùng hình factor và footprint) — khác nhau ở Output Type, Package.
TLP590B
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →TLP190B
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TLP590B
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →TLP590B(CF) Thông số kỹ thuật
| Manufacturer | Toshiba |
| Product Type | Photovoltaic-output optocoupler |
| Kiểu đầu ra | Photovoltaic (series photo-diode array) |
| Number of Channels | 1 |
| Open-Circuit Voltage (VOC), min | 7 V |
| Short-Circuit Current (ISC), typ | 12 uA |
| Isolation Voltage (rms) | 2500 Vrms |
| Hộp | 6-DIP, 5 lead (cut) |
| Input LED Forward Voltage (VF) | 1.25 V typ at 10 mA IF |
| Input LED Reverse Breakdown Voltage | 5 V min |
| Kiểu lắp đặt | Through-hole |
| Trạng thái RoHS | Compliant |
| UL Recognition | UL-recognized (file E67349) |
| Configuration | 1 channel, photovoltaic output |
Cấu hình chân TLP590B(CF)
| Chân 1 | Anode — LED anode (input side) |
| Chân 2 | Cathode — LED cathode (input side, connect to input-return) |
| Chân 3 | NC — Not connected internally |
| Chân 4 | PV+ — Photovoltaic output positive (anode of photo-diode array) |
| Chân 5 | PV- — Photovoltaic output negative (cathode of photo-diode array) |
| Chân 6 | NC — Not connected internally (lead cut on 5-lead option) |
Ứng dụng tiêu biểu
TLP590B(CF) phù hợp cho 6 Áp dụngs: Solid-State Relay Output Stage, Battery Management System High-Side Switch, MOSFET / IGBT Gate Driver (Floating), Telecommunications Line Interface, Programmable Logic Controller (PLC) Output Module, Medical Equipment Safety Isolation.
Solid-State Relay Output Stage
The TLP590B(CF) is a natural fit for solid-state relay (SSR) output stages that must replace electromechanical relays in industrial automation. The 7 V minimum open-circuit voltage floats the gate of a standard N-MOSFET, and the 12 uA short-circuit current establishes the turn-off discharge path when the input LED is de-energized. Galvaniic isolation at 2500 Vrms lets designers reuse the same control PCB across 24 V, 48 V, 110 V, and 240 V AC/DC load rails without redesigning insulation. Compared to a phototriac SSR, the PV-output variant creates a clean zero-crossing-free DC switching characteristic suited to resistive heating, solenoid, and motor-reversing loads.
Được đề xuất
Battery Management System High-Side Switch
The TLP590B(CF) provides the galvanic barrier required between a low-voltage BMS MCU and a high-side N-MOSFET disconnect switch in lithium-ion traction or stationary battery packs. The 7 V VOC floats the gate above the source potential of the high-side MOSFET, and 2500 Vrms isolation handles the safety-critical isolation between the chassis and the battery stack. Designers use this part in 48 V mild-hybrid, 96 V e-scooter, and 400 V EV traction BMS modules where each cell monitor output must remain isolated from the MCU digital ground. The Cf tape-and-reel option supports high-volume automated assembly on BMS production lines.
Được đề xuất
MOSFET / IGBT Gate Driver (Floating)
The TLP590B(CF) provides a fully isolated, bootstrap-free gate-drive path for floating or high-side MOSFET and IGBT switches. The PV output generates its own bias voltage, eliminating a secondary supply on the high-side; this simplifies half-bridge and full-bridge gate-driver circuits where a bootstrap diode or isolated DC-DC converter would otherwise be required. The 12 uA short-circuit output current suits low-frequency switching (audio, mains-frequency inverters, heater drivers); for higher switching frequencies, use a discrete buffer or a gate-driver transformer. Isolation at 2500 Vrms also meets the requirements of low-power motor-drive and photovoltaic inverter gate-driver front ends.
Được đề xuất
Telecommunications Line Interface
The TLP590B(CF) is listed on the Toshiba datasheet under telecommunications applications, where it serves as an isolated control element between ground-referenced digital logic and floating line-side drivers. In DSL, ISDN, and legacy telephony line-interface cards, the optocoupler provides 2500 Vrms safety isolation for line test-bus multiplexing, ring-detection relay control, and CO line-feed switching. The photovoltaic output can directly drive the gates of P-MOSFET line-feed switches and ringing-signal relays in 48 V central-office systems. The AlGaAs emitter also supports wide-bandwidth logic-level inputs from 3.3 V MCU GPIO via a single external series resistor.
Được đề xuất
Programmable Logic Controller (PLC) Output Module
Inside PLC digital-output modules the TLP590B(CF) isolates the low-voltage logic backplane from the 24 V or 110 V field-side output drivers. Eight or sixteen channels per module use the part to bias high-side MOSFET or P-MOSFET output stages that switch solenoid valves, lamps, and small motor starters on factory-floor wiring. The 2500 Vrms isolation, UL recognition under file E67349, and wide operating temperature window align with industrial PLC certification requirements. Designers also value the part for its photo-voltaic-only output topology, which avoids triac-output dv/dt limitations on inductive loads.
Được đề xuất
Medical Equipment Safety Isolation
Although the part carries reinforced-insulation isolation at 2500 Vrms, its lower isolation class relative to medical-grade 4 kV+ isolators places it in auxiliary monitoring and patient-isolated interface subsystems rather than direct patient-connected paths. The TLP590B(CF) is appropriate where the design target is 1 x MOPP (Means of Patient Protection) at 2500 Vrms test voltage, such as powering float-side gate drives in ultrasound board-level subsystems, or in bench-test medical equipment that requires functional isolation between analog signal chains and digital control. Always validate with your medical-compliance engineer against IEC 60601-1 requirements before relying on the 2500 Vrms figure for MOPP.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho TLP590B(CF) — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | TLP590B | TLP190B | TLP590B(TP,F) |
|---|---|---|---|---|
| Package | 6-DIP, 5 lead | 6-DIP, 5 lead (same) | 6-DIP, 5 lead (same) | 6-DIP, 5 lead (same) |
| Brand | Toshiba | Toshiba (same) | Toshiba (same) | Toshiba (same) |
| Output Type | Photovoltaic (PV) | Photovoltaic (PV) - same | Photovoltaic (PV) - same | Photovoltaic (PV) - same |
| Open-Circuit Voltage (VOC), min | 7 V | 7 V | 8 V | 7 V |
| Short-Circuit Current (ISC), typ | 12 uA | 12 uA | 12 uA | 12 uA |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms |
| Lead Form / Reel Code | Cut lead (C), Tape & Reel (F) | No lead-form / reel code | No lead-form / reel code | Tape and reel (TP, F) |
| Number of Channels | 1 | 1 | 1 | 1 |
| Packing Code (C,F) Suffix | Yes (Cut + Tape & Reel) | No (no suffix) | No (no suffix) | Yes (TP, F) |
Bảo phân biệt quan trọng
- Identical die in 5-lead cut-form / tape-and-reel option pack (vsTLP590B)
- Higher open-circuit voltage (8 V vs 7 V) for high-Vth MOSFETs (vsTLP190B)
- Pure photovoltaic output, no triac dv/dt limitation (vsPhototriac-output optocouplers (e.g., MOC3041-class))
Ghi chú thiết kế
Drive the input LED through an external current-limiting resistor. The Toshiba datasheet specifies IF in the 10 to 20 mA range for typical operation. For a 5 V logic-level input, Rlimit = (VIN - VF) / IF = (5 V - 1.25 V) / 20 mA = 187.5 ohms (use 180 ohms standard value). Lower IF reduces output voltage; higher IF (above 25 mA) stresses the AlGaAs die.
Maintain creepage and clearance distances on the PCB between input-side and output-side copper. The Toshiba datasheet notes a minimum isolation clearance of 5 mm for 2500 Vrms reinforced insulation. Avoid running traces or copper pours directly under the package body. The cut-lead (C) option can affect lead spacing, so verify the mechanical drawing before finalizing via patterns.
Estimated: The 12 uA short-circuit current translates to a slow turn-off time for downstream MOSFETs with high gate charge (Qg > 20 nC). For applications switching faster than 1 kHz with large Qg MOSFETs, an external discrete buffer transistor or a faster PV-output optocoupler (such as Toshiba TLP3902) is required. Using the TLP590B(CF) without considering this can result in excessive switching loss and self-heating.
In high-noise industrial environments, add a small capacitor (10 to 100 pF) across the input LED to filter common-mode transients on the input side, and consider an RC snubber across the output photo-diode array to control dv/dt coupling. The output is essentially an open-circuit voltage source; loading with a resistor divider does not help turn-off and only wastes current. Use a bleed resistor only if you need a defined turn-off behavior.
Thông tin tuân thủ
RoHS and REACH compliant per Toshiba product page. UL recognition under file E67349 per Toshiba datasheet. Not AEC-Q100 qualified - the part targets industrial and consumer applications, not automotive.
